Antonin Scalia, the influential conservative and most provocative member of the Supreme Court of the United States, has died, leaving the high court without its conservative majority and setting up an ideological confrontation over his successor in the maelstrom of a presidential election year. Scalia was 79.

The U.S. Marshals Service in Washington confirmed Scalia's death at a private residence in the Big Bend area of West Texas. Spokeswoman Donna Sellers said Scalia had retired the previous evening and was found dead Saturday morning after he did not appear for breakfast.

Scalia was part of a 5-4 conservative majority — with one of the five, Anthony Kennedy, sometimes voting with liberals on the court. Scalia's death leaves President Barack Obama weighing when to nominate a successor, a decision sure to spark a huge political struggle drawing in the Republicans and Democrats running to replace him.

Obama learned about Scalia's death Saturday afternoon while playing golf in La Quinta, California, before a summit with Asian leaders, and offered condolences to Scalia's family, White House spokesman Eric Schultz said.

Scalia used his keen intellect and missionary zeal in an unyielding attempt to move the court farther to the right after his 1986 selection by President Ronald Reagan. He also advocated tirelessly in favor of originalism, the method of constitutional interpretation that looks to the meaning of words and concepts as they were understood by the Founding Fathers.

Scalia's impact on the court was muted by his seeming disregard for moderating his views to help build consensus, although he was held in deep affection by his ideological opposites Ruth Bader Ginsburg and Elena Kagan. Scalia and Ginsburg shared a love of opera. He persuaded Kagan to join him on hunting trips.

His 2008 opinion for the court in favor of gun rights drew heavily on the history of the Second Amendment and was his crowning moment on the bench.

He could be a strong supporter of privacy in cases involving police searches and defendants' rights. Indeed, Scalia often said he should be the "poster child" for the criminal defense bar.

But he also voted consistently to let states outlaw abortions, to allow a closer relationship between government and religion, to permit executions and to limit lawsuits.

He was in the court's majority in the 2000 Bush v. Gore decision, which effectively decided the presidential election for Republican George W. Bush. "Get over it," Scalia would famously say at speaking engagements in the ensuing years whenever the topic arose.

Bush later named one of Scalia's sons, Eugene, to an administration job, but the Senate refused to confirm him. Eugene Scalia served as the Labor Department solicitor temporarily in a recess appointment.

A smoker of cigarettes and pipes, Scalia enjoyed baseball, poker, hunting and the piano. He was an enthusiastic singer at court Christmas parties and other musical gatherings, and once appeared on stage with Ginsburg as a Washington Opera extra.

Ginsburg once said that Scalia was "an absolutely charming man, and he can make even the most sober judge laugh." She said that she urged her friend to tone down his dissenting opinions "because he'll be more effective if he is not so polemical. I'm not always successful."

He could be unsparing even with his allies. In 2007, Scalia sided with Chief Justice John Roberts in a decision that gave corporations and labor unions wide latitude to air political ads close to elections. Yet Scalia was upset that the new chief justice's opinion did not explicitly overturn an earlier decision. "This faux judicial restraint is judicial obfuscation," Scalia said.

Quick-witted and loquacious, Scalia was among the most persistent, frequent and quotable interrogators of the lawyers who appeared before the court.

During Scalia's first argument session as a court member, Justice Lewis F. Powell leaned over and asked a colleague, "Do you think he knows that the rest of us are here?"

The only child of an Italian immigrant father who was a professor of Romance languages and a mother who taught elementary school, Scalia attended public schools in his native New Jersey, graduated first in his class at Georgetown University and won high honors at the Harvard University Law School.

He worked at a large Cleveland law firm for six years before joining the faculty of the University of Virginia's law school. He left that job to work in the administrations of Presidents Richard Nixon and Gerald Ford.

From 1977 to 1982, Scalia taught law at the University of Chicago.

He then was appointed by President Ronald Reagan to the U.S. Circuit Court of Appeals for the District of Columbia. Scalia and his wife, Maureen, had nine children.